Photos of each of the six Apollo landing sites photographed from low orbit by NASA's Lunar Reconnaissance Orbiter. ALSEP stands for Apollo Lunar Surface Experiments Package. The astronauts' tracks as well as the rover and other items are plainly visible.

Voyager 1 spacecraft's biggest moments are shown in this chart covering the last 36 years. Voyager 1 is almost 12 billion miles away now! and moving at miles per hour!Voyager 1 will be the first ever object we've sent outside our solar system.

Thermoelectric Fan Powered by a Candle Better writeup than many. Looks good due to heatsink used. A Thermoelectric generator powered by a tealight. It started as an experiment of how much power I could get from one candle. But I liked the idea and it wo